.warp{
    position: absolute;
    top: 7.4vw;
    bottom: 0;
    left: 0;
    right: 0;
    background-image: url("../images/img@3x.png");
    background-repeat: no-repeat;
    background-size: 100% 100%;
    text-align: center
}

.login-warp{
    position: absolute;
    top: 50%;
    left: 50%;
    margin-top: -15.6vw;
    margin-left: -18.93vw;
    width: 37.86vw;
    height: 31.2vw;
    background-color: rgba(255, 255, 255, .5)
}
.login-warp .login-title{
    font-size: 2.96vw;
    font-family: PingFangSC-Regular;
    margin-top: 4.526vw;
}

.warp-item{
    width: 24.69vw;
    height: 4.938vw;
    margin: 0 auto 1.728vw;
}
.warp-item input{
    height: 99%;
    width: 99%;
    border: none;
    outline: none;
    font-size: 1.316vw;
    text-indent: .823vw;
}
.btn{
    display: block;
    width: 24.69vw;
    line-height: 3.293vw;
    color: #fff;
    font-size: 1.316vw;
    margin: 0 auto;
    background-color: #212121
}